NCHRP Synthesis 382:

Estimating Stiffness of Subgrade and Unbound Materials for Pavement Design

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Size: 138 pages, 8.5 x 11

Publication Year:2009

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Authors:
Anand J Puppala; Transportation Research Board
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TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 382: Estimating Stiffness of Subgrade and Unbound Materials for Pavement Design explores the significance of the resilient modulus property, various methods of determining this property of subsoils and unbound bases, and the ...
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Table of Contents
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Front Matter	i-viii
Introduction and Definitions	3-4	(skim)
Outline of Chapters	5-5	(skim)
Survey Results	6-20	(skim)
Summary	21-21	(skim)
Laboratory Tests Used for Resilient Modulus	22-23	(skim)
Laboratory MR Tests - Summary	24-39	(skim)
International Perspectives	40-40	(skim)
Summary	41-41	(skim)
Field Tests	42-44	(skim)
Synthesized Information - Nondestructive Tests	45-55	(skim)
Final Summary on NonDestructive Methods	56-56	(skim)
Intrusive Methods	57-64	(skim)
Summary	65-65	(skim)
Direct Resilient Moduli Correlations	66-70	(skim)
Indirect Models	71-73	(skim)
Correlations Development and Evaluation	74-77	(skim)
Matrix Tables	78-79	(skim)
Resilient Moduli Magnitudes	80-81	(skim)
Summary	82-82	(skim)
Useful Practices for Determining Resilient Properties	83-83	(skim)
Conclusion	84-84	(skim)
Future Research Needs	85-86	(skim)
REFERENCES	87-94	(skim)
APPENDIX A - Survey Questionnaire	95-108	(skim)
APPENDIX B - Survey Respondent Information	109-110	(skim)
APPENDIX C - Summary of Survey Results	111-123	(skim)
APPENDIX D - Moduli of Various Soils and Aggregates	124-130	(skim)

Description

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 382: Estimating Stiffness of Subgrade and Unbound Materials for Pavement Design explores the significance of the resilient modulus property, various methods of determining this property of subsoils and unbound bases, and the application of this parameter in the mechanistic-empirical pavement design guide.

NCHRP Synthesis 382:

Estimating Stiffness of Subgrade and Unbound Materials for Pavement Design

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